- Membership & Community
-
Publications & News
- Physiology Journals
-
Newsroom
-
The Physiologist Magazine
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- In Depth
-
Mentoring Forum
- Net Worth
- Take Care
- You … In Charge
- Work. It. Out.
- Working Off-site
- Location, Location, Location?
- Student Support
- Progressing to Postdoc
- Relationship Building
- Let’s Get It Started
- What Do We Value?
- It’s a Postdoc Life
- Coronavirus Contributions
- Creative Communications
- Selection Process
- Conference Connections
- Postdoc Appreciation
- Research Rewards
- Focus on Teaching
- Industry Insights
- Balance Beam
- Post Postdoc
- If You Build It
- Talk It Through
- Forward Bound
- I’ve Earned My PhD. Now What?
- University Life
- Tips for Trainees
- Time Travel
- Prepare Now for the Career You Want
- Landing a Postdoctoral Researcher Position
- Becoming a Physician-Scientist
- Policy IQ
- Publish with Polish
- Under the Microscope
- Mentoring Q&A
- Evolution
- Baseline by Scott Steen, CAE, FASAE
- Find Us on Social Media
-
The Physiologist Magazine
-
Professional Development
-
Meetings & Events
-
American Physiology Summit
- #APS2024 Overview
- Abstracts
- Awards at the Summit
- Award Lectures
- Career Networking Lunch Form
- Dates and Deadlines
- Hotel Information
- Industry Partners
- Mobile App
- NIH and NSF Program Officer Panel Discussion Form
- Physical Poster Information
- PhysioHub
- Pre-Summit Events
- Registration
- Section & Group Banquet Tickets
- Social Events
- Speaker Audiovisual Instructions
- Summit FAQs
- Summit Newsroom
- Summit Store
- Travel & Transportation
- Undergraduate Program Book
- Liability Waiver
- Industry Partners
- Martin Frank Diversity Travel Award Orientation Agenda
- Martin Frank Diversity Travel Award Networking Luncheon Agenda
- Women in Physiology Networking Event Agenda
-
2023
- APS 2023 Call for Proposals
- Shocklogic Test
- Team 2023 Task Force
- Shaping the Summit
- Schedule at a Glance
- Pre-Summit Events
- Pre-Summit Center for Physiology Education Workshop Registration
- Section & Groups Banquet Tickets
- Summit Store
- Pre-Summit Center for Physiology Education Workshop
- Press Registration
- Meet the Organizers
- Keynote Speaker—Terrie Williams, PhD
- Keynote Speaker—David Julius, PhD
- Industry Workshop Information
- Important Dates and Deadlines
- Hotel Information
- Game Changers
- Distinguished Lecturers
- Building APS 2023
- Awards at the Summit
- 2023 Summit Information
- American Physiology Summit Program
- 2023 Summit Newsroom
- 2024
- Scientific Integrity Policy
- Integrative Physiology of Exercise Conference
- Webinars
- Related Meetings
- Future APS Conferences
-
Past APS Conferences
- APS Institute on Teaching and Learning
- Integrative Physiology of Exercise
- Seventeenth International Conference on Endothelin (ET-17)
- New Trends in Sex and Gender Medicine
- APS Institute on Teaching and Learning (2022)
- Control of Renal Function in Health and Disease Conference
- Comparative Physiology: From Organisms to Omics in an Uncertain World
- Conference Policies
-
American Physiology Summit
- Awards
-
Career & Professional Development
-
Career Gateway
-
Resources
- Transcript—Leading Through Conflict and Difficult Conversations
- Transcript—Managing Conflict with Colleagues
- Transcript—Leading a Team Through Conflict
- Transcript—Providing Difficult Feedback
- Transcript—Team Dynamics and Culture Primer
- Transcript—Building a Team
- Transcript—Leading a Team Assigned to You
- Transcript—Creating a Team Culture
-
Resources
- Career Navigator
- Center for Physiology Education
- Job Board
- Mentoring
- APS Graduate Physiology & Biomedical Science Catalog
-
Career Gateway
-
Meetings & Events
-
Advocacy & Resources
- Policy Areas
-
Resources
- Researcher Resources
- Educator Resources
- Trainee Resources
- Student Resources
-
APS Graduate Physiology & Biomedical Science Catalog
- Des Moines University
- East Tennessee State University
- George Washington University
- Mayo Clinic Graduate School of Biomedical Sciences—Biomedical Engineering & Physiology
- Michigan State University
- New York Medical College
- Nova Southeastern University
- Pennsylvania State University
- Texas A&M University
- Texas A&M University Medical Physiology
- Stony Brook University
- The University of Iowa
- University of Alabama at Birmingham
- University at Buffalo
- University of Colorado
- University of Michigan
- University of Minnesota
- University of Missouri-Biomedical Sciences
- University of Nebraska Medical Center
- University of Oregon
- University of South Carolina School of Medicine
- University of Tennessee Health Science Center (UTHSC)
- University of Texas Health Science Center
- Virginia Commonwealth University
- Wayne State University
- Wake Forest University
- Physiology Department Catalog Submission Form
- Women's Health Research Initiative
- Career Gateway
- Diversity, Equity & Inclusion
- Advocacy
- About APS
Tool could be especially useful for athletes at the 2024 Summer Olympics in Paris
Rockville, Md. (July 11, 2024)—For the first time, researchers have developed a validated tool that lets athletes predict their rate of whole-body sweat loss. The tool consists of precise equations that help people regulate the amount of fluids they drink over three hours while active in warm to hot weather. The results of the multi-institution study are published in the Journal of Applied Physiology. It has been chosen as an APSselect article for July.
High sweat rates can result in dehydration, impaired performance and increased risk of heat stroke or heat exhaustion. It is well-documented that people significantly underestimate—by as much as 50%—the amount of fluid they need to replace from sweat loss. On the other end of the spectrum, some athletes drink too much to offset sweat loss, which can cause low blood sodium levels.
A total of 102 athletes (64 men and 38 women) participated in the study. The researchers collected data from two sites where volunteers completed 158 outdoor cycling trials and 182 outdoor running trials. Each trial lasted approximately 60 minutes and was conducted in weather warmer than 64 degrees F. Whole-body sweat rates were calculated by body mass changes.
The sweat rate loss equations developed through this study will allow athletes to properly manage their hydration before they participate in outdoor cycling and running and reach optimal performance. To do so, they input information such as measured or estimated environmental conditions and exercise speed and duration. The resulting data keeps athletes from replacing too much or too little fluids.
These equations are the first for such activities based on the biophysics of heat exchange. Before now, accurate pre-exercise guidance for athletes from a validated source has not existed. The researchers have made their prediction models available to the public via an online sweat rate calculator.
The research team suggested these results are particularly significant for athletes competing at the 2024 Summer Olympics in Paris. “With global warming causing more frequent and extreme hot weather over more months, this information is increasingly important to preserve health and performance,” said Mike Sawka, PhD, FAPS, co-author of the study.
Read the full article, “Whole body sweat rate prediction: outdoor running and cycling exercise.” It is highlighted as one of this month’s “best of the best” as part of the American Physiological Society’s APSselect program. Read all of this month’s selected research articles.
NOTE TO JOURNALISTS: To schedule an interview with a member of the research team, please contact APS Media Relations or call 301.634.7314. Find more research highlights in our Newsroom.
Physiology is a broad area of scientific inquiry that focuses on how molecules, cells, tissues and organs function in health and disease. The American Physiological Society connects a global, multidisciplinary community of more than 10,000 biomedical scientists and educators as part of its mission to advance scientific discovery, understand life and improve health. The Society drives collaboration and spotlights scientific discoveries through its 16 scholarly journals and programming that support researchers and educators in their work.
Related Content
- Removing Bile Acid Receptor in Gut Blocks Intestinal Inflammation
- Diesel Exhaust May Harm Immune System, Trigger Inflammation
- ‘Social Jet Lag’ Leads to Weight Gain and Increased Blood Sugar in Mice
- Prebiotics Could Help Space Travelers Stay Healthy
- Teaching Section Resources
- Researchers are One Step Closer to Preventing Preeclampsia
- Short On Time? A 15-minute Workout May Help Boost Your Immune System
Contact Us
For questions, comments or to share your story ideas, email us.